EP0386677A3 - Method for the generation of a random number for encyphered data transmission, using a variable start-value - Google Patents
Method for the generation of a random number for encyphered data transmission, using a variable start-value Download PDFInfo
- Publication number
- EP0386677A3 EP0386677A3 EP19900104207 EP90104207A EP0386677A3 EP 0386677 A3 EP0386677 A3 EP 0386677A3 EP 19900104207 EP19900104207 EP 19900104207 EP 90104207 A EP90104207 A EP 90104207A EP 0386677 A3 EP0386677 A3 EP 0386677A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- random number
- generation
- value
- data transmission
- variable start
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 title 1
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
- G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
- G07F7/10—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means together with a coded signal, e.g. in the form of personal identification information, like personal identification number [PIN] or biometric data
- G07F7/1008—Active credit-cards provided with means to personalise their use, e.g. with PIN-introduction/comparison system
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
- G06F7/58—Random or pseudo-random number generators
- G06F7/582—Pseudo-random number generators
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
- G06Q20/34—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using cards, e.g. integrated circuit [IC] cards or magnetic cards
- G06Q20/341—Active cards, i.e. cards including their own processing means, e.g. including an IC or chip
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/40—Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check credit lines or negative lists
- G06Q20/409—Device specific authentication in transaction processing
- G06Q20/4097—Device specific authentication in transaction processing using mutual authentication between devices and transaction partners
- G06Q20/40975—Device specific authentication in transaction processing using mutual authentication between devices and transaction partners using encryption therefor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
- H04L9/065—Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3
- H04L9/0656—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher
- H04L9/0662—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher with particular pseudorandom sequence generator
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Accounting & Taxation (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Strategic Management (AREA)
- General Business, Economics & Management (AREA)
- Mathematical Optimization (AREA)
- Signal Processing (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Finance (AREA)
- Pure & Applied Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Storage Device Security (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Communication Control (AREA)
- Memory System Of A Hierarchy Structure (AREA)
- Credit Cards Or The Like (AREA)
Abstract
Ausgehend von einer zuletzt benutzten und zwischengespeicherten Zufallszahl wird jedes Byte dieser Zufallszahl mit je einem Byte mehrerer, jeweils n-Byte breiter Datenblöcke aus dem Ar beitsspeicher des Chipkarten-Prozessors logisch verknüpft und das Ergebnis dieser Mehrfach Verknüpfung als Startwert für die Generierung einer neuen Zufallszahl verwendet. Starting from a last used and cached Random number is each byte of this random number with one each Bytes of several, each n-byte wide data blocks from the Ar memory of the chip card processor logically linked and the result of this multiple link as the starting value for the Generation of a new random number used.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT90104207T ATE99819T1 (en) | 1989-03-08 | 1990-03-05 | METHOD OF GENERATION OF A RANDOM NUMBER FOR THE ENCRYPTED TRANSMISSION OF DATA, USING A VARIABLE SEED VALUE. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3907526 | 1989-03-08 | ||
DE3907526 | 1989-03-08 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0386677A2 EP0386677A2 (en) | 1990-09-12 |
EP0386677A3 true EP0386677A3 (en) | 1991-06-12 |
EP0386677B1 EP0386677B1 (en) | 1994-01-05 |
Family
ID=6375857
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90104207A Expired - Lifetime EP0386677B1 (en) | 1989-03-08 | 1990-03-05 | Method for the generation of a random number for encyphered data transmission, using a variable start-value |
Country Status (5)
Country | Link |
---|---|
US (1) | US5067156A (en) |
EP (1) | EP0386677B1 (en) |
AT (1) | ATE99819T1 (en) |
DE (1) | DE59004066D1 (en) |
ES (1) | ES2047730T3 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2672402B1 (en) * | 1991-02-05 | 1995-01-27 | Gemplus Card Int | METHOD AND DEVICE FOR THE GENERATION OF UNIQUE PSEUDO-RANDOM NUMBERS. |
NL9101796A (en) * | 1991-10-25 | 1993-05-17 | Nederland Ptt | METHOD FOR AUTHENTICATING COMMUNICATION PARTICIPANTS, METHOD FOR USING THE METHOD AND FIRST COMMUNICATION PARTICIPANT AND SECOND COMMUNICATION PARTICIPANT FOR USE IN THE SYSTEM. |
US5345508A (en) * | 1993-08-23 | 1994-09-06 | Apple Computer, Inc. | Method and apparatus for variable-overhead cached encryption |
US5444781A (en) * | 1993-08-23 | 1995-08-22 | Apple Computer Inc. | Method and apparatus for decryption using cache storage |
FR2721414B1 (en) * | 1994-06-15 | 1996-08-09 | Inst Nat Rech Inf Automat | Quasi-random code generator. |
US5966450A (en) * | 1996-08-13 | 1999-10-12 | Lucent Technologies | Variable mask for encryption generated independently at communications stations |
FR2757979B1 (en) * | 1996-12-27 | 1999-01-29 | Gemplus Card Int | METHOD FOR DYNAMIC DATA INTERPRETATION FOR A CHIP CARD |
US7725740B2 (en) * | 2003-05-23 | 2010-05-25 | Nagravision S.A. | Generating a root key for decryption of a transmission key allowing secure communications |
US9037624B1 (en) | 2012-08-03 | 2015-05-19 | Seagate Technology Llc | Using memory access times for random number generation |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0063332A1 (en) * | 1981-04-13 | 1982-10-27 | Siemens Aktiengesellschaft | Apparatus for enciphered digital information transmission |
WO1985003787A1 (en) * | 1984-02-14 | 1985-08-29 | Peter White | Electronic transaction security system |
US4605820A (en) * | 1983-11-10 | 1986-08-12 | Visa U.S.A. Inc. | Key management system for on-line communication |
WO1987007743A1 (en) * | 1986-06-16 | 1987-12-17 | Bull Cp8 | Method for authentifying by means of an exterior medium a portable object such as a memory card coupled to said medium |
FR2600190A1 (en) * | 1986-06-16 | 1987-12-18 | Bull Cp8 | Method for diversifying a basic key and for authenticating a key thus diversified as having been derived from a predetermined basic key, and system for implementation |
EP0320489A2 (en) * | 1987-12-07 | 1989-06-14 | Automations- Und Informationssysteme Gesellschaft M.B.H. | Method to increase IC-card security, and IC-card making use of this method |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE426128B (en) * | 1981-04-08 | 1982-12-06 | Philips Svenska Ab | METHOD FOR TRANSFER OF DATA MESSAGES BETWEEN TWO STATIONS, AND TRANSFER PLANT FOR EXECUTING THE METHOD |
US4438824A (en) * | 1981-04-22 | 1984-03-27 | Siemens Corporation | Apparatus and method for cryptographic identity verification |
GB2146815A (en) * | 1983-09-17 | 1985-04-24 | Ibm | Electronic fund transfer systems |
NL8602847A (en) * | 1986-11-11 | 1988-06-01 | Philips Nv | METHOD FOR Ciphering / Deciphering and Device for Carrying Out the Method |
ES2041712T3 (en) * | 1987-03-04 | 1993-12-01 | Siemens Nixdorf Informationssysteme Ag | DATA EXCHANGE SYSTEM. |
ES2051780T3 (en) * | 1987-03-04 | 1994-07-01 | Siemens Nixdorf Inf Syst | CIRCUIT PROVISION TO ENSURE ACCESS TO A DATA PROCESSING SYSTEM WITH THE HELP OF A CHIPS CARD. |
-
1990
- 1990-03-05 DE DE90104207T patent/DE59004066D1/en not_active Expired - Fee Related
- 1990-03-05 EP EP90104207A patent/EP0386677B1/en not_active Expired - Lifetime
- 1990-03-05 ES ES90104207T patent/ES2047730T3/en not_active Expired - Lifetime
- 1990-03-05 AT AT90104207T patent/ATE99819T1/en not_active IP Right Cessation
- 1990-03-08 US US07/490,433 patent/US5067156A/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0063332A1 (en) * | 1981-04-13 | 1982-10-27 | Siemens Aktiengesellschaft | Apparatus for enciphered digital information transmission |
US4605820A (en) * | 1983-11-10 | 1986-08-12 | Visa U.S.A. Inc. | Key management system for on-line communication |
WO1985003787A1 (en) * | 1984-02-14 | 1985-08-29 | Peter White | Electronic transaction security system |
WO1987007743A1 (en) * | 1986-06-16 | 1987-12-17 | Bull Cp8 | Method for authentifying by means of an exterior medium a portable object such as a memory card coupled to said medium |
FR2600190A1 (en) * | 1986-06-16 | 1987-12-18 | Bull Cp8 | Method for diversifying a basic key and for authenticating a key thus diversified as having been derived from a predetermined basic key, and system for implementation |
EP0320489A2 (en) * | 1987-12-07 | 1989-06-14 | Automations- Und Informationssysteme Gesellschaft M.B.H. | Method to increase IC-card security, and IC-card making use of this method |
Also Published As
Publication number | Publication date |
---|---|
ES2047730T3 (en) | 1994-03-01 |
US5067156A (en) | 1991-11-19 |
DE59004066D1 (en) | 1994-02-17 |
ATE99819T1 (en) | 1994-01-15 |
EP0386677B1 (en) | 1994-01-05 |
EP0386677A2 (en) | 1990-09-12 |
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